Note 10 - Long-term Investments - Summary of Investment in and Advance to Equity Investment Affiliates (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Investment in equity method investees	$ 737	$ 778
Advance to equity method investees	78	80
Impairment on equity method investments	(815)	(838)
Total equity method investments		20
Investment in cost method investees	1,550	1,113
Total long-term investments	$ 1,550	$ 1,133